k1 = a
k2 = b
k3 = c_1
k4 = c_2
k5 = d_1
k6 = d_2
k7 = d_3
k8 = e
k9 = f_1
k10 = f_2
k11 = g
k12 = h
k13 = i
k14 = j
k15 = k
k16 = s_1
k17 = s_2
k18 = u
k19 = r_1
k20 = g_1
k21 = h_1
k22 = compartment